Produal RTX | HVAC Room Transmitter

Produal RTX environment transmitter for temperature, humidity, CO₂, VOCs, and PIR presence. Outputs: 0-10 V, Modbus RTU, BACnet MS/TP, and P/PI control for HVAC and BMS

Accurate monitoring of temperature, humidity, CO₂, and indoor air quality is essential in smart buildings, offices, hospitals, hotels, educational centers, and modern HVAC systems. Produal RTX ambient transmitter It is designed to centralize these measurements in a single device, facilitating the monitoring and control of HVAC/R, BMS and building automation systems.

Depending on the version selected, the device can measure temperature, relative humidity, CO₂ concentration, volatile organic compounds (VOCs), and presence using a PIR sensor. Thanks to its accuracy of up to ±0.3 ºC In terms of temperature, it allows for improved thermal regulation, optimization of indoor comfort, and provides reliable data for the building's energy management.

The RTX is not limited to measuring environmental variables. It incorporates a integrated P/PI controller Capable of controlling heating, cooling, ventilation, humidification, and dehumidification. The control output can operate based on a single variable or by maximum selection, automatically prioritizing the environmental variable that generates the greatest control demand, whether it be temperature, humidity, CO₂, or VOC.

To facilitate integration into new or existing installations, it features a multifunction input compatible with PT1000, NTC10 sensors, digital, resistive and 0-10 V signals, plus up to four configurable outputs of 0-10 V, versions with relay output and communication Modbus RTU either BACnet MS/TP via RS-485. This allows it to be connected directly to PLCs, HVAC controllers, VAV units, and centralized technical management systems.

Models with relative humidity also incorporate advanced functions such as dew point calculation and condensation alarm, especially useful in air conditioning installations, air ducts, cold water pipes and surfaces where condensation formation must be avoided.

The configuration is done through the application. MyProdual and the adapter MyTool Connect, reducing start-up times and facilitating the adjustment of measurements, outputs, alarms, communication and control functions.

RTX Ambient Transmitter Applications

The Produal RTX is commonly used in HVAC/R systems, smart buildings, offices, hospitals, hotels, educational centers, laboratories, VAV units, technical rooms and BMS systems where continuous monitoring of temperature, relative humidity, CO₂, volatile organic compounds (VOCs) and occupant presence is required.

Properties

PropertyWorth
ManufacturerProdual
ModelRTX
Type of equipmentRoom transmitter for HVAC, BMS and building automation
Available variablesTemperature, relative humidity, CO₂, VOCs and PIR presence detection depending on the version
ApplicationsAir conditioning, ventilation, indoor air quality, VAV units, technical buildings, offices, hospitals, hotels and educational centers
Feeding24 V AC (22…26 V) / 24 V DC (22…39 V), < 3.2 VA
Temperature range0…50 ºC
Temperature accuracy±0.3 ºC at 20…25 ºC; ±0.5 ºC in -VOC and -R models
Temperature time constantAdjustable, greater than 1 minute
Relative humidity range0…100 %HR in -RH models
Humidity accuracyTyp. ±2 %HR at 20…25 ºC; max. ±3 %HR
CO₂ range0…5000 ppm in -CO2 models
CO₂ accuracyTyp. ±40 ppm + 2 % of reading; max. ±50 ppm + 2 % of reading with ABC calibration
VOC measurementCO₂ equivalent 400…2000 ppm, TVOC 0…65000 ppb, TVOC 0…32767 µg/m³ and CAI index 1…5
VOC AccuracyTyp. <12 % of the reading; max. <18 %
Presence detectionPIR sensor up to 5 m with an angle of ±35º in -PIR models
Multifunction inputDigital, resistance, 0…10 V DC, NTC 10, PT1000 or universal temperature sensor
Multifunction outletsUp to 4 configurable outputs of 0…10 V DC, < 2 mA
Functions of the outputsAnalog measurement output, analog control output, two-state digital output, input signal forwarding, or bus control
Output accuracy±0.1 % of the full scale
Relay output24V AC/DC switching, 1A resistive in -R models
Integrated controllerConfigurable P/PI
Control functionsHeating, cooling, ventilation, humidification and dehumidification
Maximum selection controlYes, it allows you to control the output according to the variable that demands the greatest control signal.
Condensation alarmYes, in -RH models using dew point calculation
Modbus communicationModbus RTU over RS-485 in -MOD models
BACnet CommunicationBACnet MS/TP over RS-485 on -BAC models
Modbus bus speed9600, 14400, 19200, 38400, 56000, 57600, 76800 or 115200 bit/s
BACnet bus speed9600, 14400, 19200, 38400, 57600, 76800 or 115200 bit/s
ParityNone, odd, or even
Stop bits1 or 2
RS-485 drive charging1/8 UL
ConfigurationMyProdual application with MyTool Connect dongle; basic settings via bus in -MOD and -BAC versions
Indicator lightAvailable in -L models; configurable for measurement, contact status, control, or bus traffic
TerminalsSlanted screw terminals for 0.2…2.5 mm² wires
Tightening torque0.4 Nm
Team categoryIII according to IEC 60664-1
Operating conditions0…60 ºC, 0…95 %HR non-condensing
Storage conditions10…35 ºC, 20…60 %HR non-condensing
Degree of protectionIP30
Housing materialABS plastic
MountingWall surface or recessed box with a distance between holes of 60 mm
Recommended installation height150…180 cm
Dimensions97 x 97 x 27mm; -PIR models: 97 x 97 x 29 mm
Warranty5 years
Produal RTX ambient transmitter for temperature, relative humidity, CO2, VOC and presence detection
Connection diagram and terminal layout of the Produal RTX ambient transmitter with Modbus RS485 communication

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